CN101092015A - Method for manufacturing large size, thin walled cap seal head made from TC4 titanium alloy with high precision - Google Patents
Method for manufacturing large size, thin walled cap seal head made from TC4 titanium alloy with high precision Download PDFInfo
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- CN101092015A CN101092015A CN 200710143254 CN200710143254A CN101092015A CN 101092015 A CN101092015 A CN 101092015A CN 200710143254 CN200710143254 CN 200710143254 CN 200710143254 A CN200710143254 A CN 200710143254A CN 101092015 A CN101092015 A CN 101092015A
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Abstract
The invention relates to a manufacture method for large size thin wall high accurate TC4 Ti alloy end plate. It adopts strong rotating and multi-times normal rotating method to insure the accuracy of product. It takes stability process between rough turning and refined turning to conquer the influence of residual stress of component and improve accuracy of product. The manufacture process does not need many moulds. It is suitable for manufacturing large size thin wall high accurate TC4 Ti alloy.
Description
Technical field
The invention belongs to a kind of manufacture method of end socket, be specifically related to a kind of manufacture method of thin-walled TC4 titanium alloy closing end.
Background technology
Large size, thin walled cap seal head made from TC 4 titanium alloy with high precision is a kind of important structure part of manned spaceship space station.Intensity height under the TC4 titanium alloy normal temperature, plasticity is low, and elastic modelling quantity is big, and processing technology is relatively poor, must be shaped under hot conditions.The large size, thin walled cap seal head made from TC 4 titanium alloy with high precision preparation, if adopt drop stamping or high temperature forging, and then machining process, there are the following problems: adopt drop stamping and mechanical processing technique, must adopt many molds, punching press is several times finished, and also to coat before the punching press TC4 titanium alloy raw material, also to remove clad after the punching press, thereby the manufacturing cost height, efficient is low, and punching press is that the blank integrally stretching is shaped, the blank resilience is big, material has damage, and the punching parts precision is on the low side; Adopt and forge and mechanical processing technique, also must adopt forging mold, through repeatedly forging into the heavy wall forging part with large-scale punch and die, Vehicle Processing is shaped then, the cost height, and efficient is low, and because the end socket size is big, it is even to forge tissue odds, forges the heavy wall forging part after the surfaces externally and internally Vehicle Processing, and the central core performance is lower, difficulty satisfies instructions for use, and forge mould forging allowance is big, and distortion is serious, and element precision is low; Adopt punching press in addition or forge machining process again, often be subjected to device-restrictive, need large-tonnage drop stamping lathe or forging equipment and Large-scale Heater.
Adopt the be shaped end socket of SR300 * 5mm of the mode of three punching presses in " mechanic (hot-working) " 2004 the 10th interim document " hot forming of titanium alloy closing end ".This process using three cover stamping dies, operation is many, the cycle is long, the cost height, part wall thickness, size are little.
" heat processing technique " 2003 the 2nd middle thick wall heads that adopt A3 steel and the heat mode of revolving to process Φ 800 * 6mm of interim document " heat is revolved the research and development of end socket technology ".Only mention the thick end socket of mould pressing A3 steel in the document, do not relate to product precision and performance requirement, and the A3 hardness of steel is low, plasticity good, rotary pressing processing is a lot of easily than the TC4 titanium alloy.
Do not see the bibliographical information of the manufacture method of bellows-type tank thin-walled TC4 titanium alloy closing end at present both at home and abroad.
Summary of the invention
The object of the present invention is to provide the manufacture method of the large size, thin walled cap seal head made from TC 4 titanium alloy with high precision of a kind of precision height, low cost of manufacture.
The present invention is achieved in that a kind of manufacture method of large size, thin walled cap seal head made from TC 4 titanium alloy with high precision, and it may further comprise the steps:
(1) a time is revolved by force: core is preheated to 200 ℃～350 ℃, blank is installed on the core after the preheating, the relative end socket profile of frock profile leaves the allowance of 0.5～1mm, and whole blank is preheated to 300 ℃～500 ℃, concentrating then to give needs the spinning position to be heated to 750 ℃～900 ℃, is threaded to 30%～45% place of maximum deformation quantity more by force;
(2) multi-process conventional spinning: the blank of step (1) gained under 700 ℃～900 ℃ temperature, is carried out the general of 4～6 passages and revolves, the undeformed flange of strong biscuit throwing spare district is abutted on the core, shrink and form the end socket semi-finished product;
(3) a time is revolved by force again: with the end socket semi-finished product of step (2) gained under 750 ℃～900 ℃ temperature from central division the position be threaded to the end socket oral area again by force, making deflection is 5%～10%;
(4) vacuum annealing is handled: the end socket semi-finished product that spinning is crossed carry out 50～70min high-temperature vacuum annealing in process at 760 ℃～800 ℃, cool off with stove then;
(5) rough turn outer mold surface: the end socket semi-finished product after the annealing in process are carried out rough turn processing, leave allowance 1～1.5mm;
(6) stabilization processes: the end socket semi-finished product of step (5) gained are warming up to 380 ℃～420 ℃ in 70～110min, insulation 50～70min is warming up to 580 ℃～620 ℃ subsequently in 50～70min, and insulation 100～140min cools off with stove then;
(7) outer mold surface in the finish turning: profile in the first finish turning, the finish turning outer mold surface is to the product requirement size again.
There is following advantage in the present invention: adopt revolve by force, multi-process conventional spinning, the spin-on process of revolving by force again, overcome punching press or forging parts precision shortcoming on the low side, improved the precision of product; Between rough turn and finish turning, carry out stabilization processes, overcome the influence of the residual stress of part, further improved the precision of product.In addition, owing to do not need many molds in the manufacture process, so reduced manufacturing cost.
The specific embodiment
Embodiment 1
A kind of manufacture method of large size, thin walled cap seal head made from TC 4 titanium alloy with high precision, it may further comprise the steps:
(1) a time is revolved by force: selecting thickness is the blank of 10mm, and being prepared into and being with center positioning hole, diameter is the plectane blank of Φ 650mm; With oxygen-acetylene welding torch core is preheated to 200 ℃, blank is installed on the core after the preheating, the relative end socket profile of frock profile leaves the allowance of 0.5mm, and whole blank is preheated to 300 ℃, concentrating then to give needs the spinning position to be heated to 750 ℃, is threaded to 30% place of maximum deformation quantity more by force.The spinning machine principle is by the control deflection, adjust corresponding gap value with deflection, the compacting blank reaches needed size, rather than realize needed size by the controlled pressure value, for spinning process, can realize needed size by rotary pressure deformation amount, core temperature and blank temperature.
(2) multi-process conventional spinning: the blank of step (1) gained under 700 ℃ of temperature, is carried out the general of 4 passages and revolves, the undeformed flange of strong biscuit throwing spare district is abutted on the core, shrink and form the end socket semi-finished product;
(3) a time is revolved by force again: with the end socket semi-finished product of step (2) gained under 750 ℃ of temperature from central division the position be threaded to the end socket oral area again by force, making deflection is 5%;
(4) vacuum annealing is handled: the end socket semi-finished product that spinning is crossed carry out 50min high-temperature vacuum annealing in process at 760 ℃, cool off with stove then;
(5) rough turn outer mold surface: the end socket semi-finished product after the annealing in process are carried out rough turn processing, leave allowance 1mm;
(6) stabilization processes: the end socket semi-finished product of step (5) gained are warming up to 380 ℃ in 70min, insulation 70min is warming up to 580 ℃ subsequently in 50min, and insulation 140min cools off with stove then;
(7) outer mold surface in the finish turning: profile in the first finish turning, the finish turning outer mold surface is to the product requirement size again.
Embodiment 2
A kind of manufacture method of large size, thin walled cap seal head made from TC 4 titanium alloy with high precision, it may further comprise the steps:
(1) a time is revolved by force: selecting thickness is the blank of 15mm, and being prepared into and being with center positioning hole, diameter is the plectane blank of Φ 850mm; With oxygen-acetylene welding torch core is preheated to 350 ℃, blank is installed on the core after the preheating, the relative end socket profile of frock profile leaves the allowance of 1mm, and whole blank is preheated to 500 ℃, concentrating then to give needs the spinning position to be heated to 900 ℃, is threaded to 45% place of maximum deformation quantity more by force;
(2) multi-process conventional spinning: the blank of step (1) gained under 900 ℃ of temperature, is carried out the general of 6 passages and revolves, the undeformed flange of strong biscuit throwing spare district is abutted on the core, shrink and form the end socket semi-finished product;
(3) a time is revolved by force again: with the end socket semi-finished product of step (2) gained under 900 ℃ of temperature from central division the position be threaded to the end socket oral area again by force, making deflection is 10%;
(4) vacuum annealing is handled: the end socket semi-finished product that spinning is crossed carry out 50～70min high-temperature vacuum annealing in process at 800 ℃, cool off with stove then;
(5) rough turn outer mold surface: the end socket semi-finished product after the annealing in process are carried out rough turn processing, leave allowance 1.5mm;
(6) stabilization processes: the end socket semi-finished product of step (5) gained are warming up to 420 ℃ in 110min, insulation 50min is warming up to 620 ℃ subsequently in 70min, and insulation 100min cools off with stove then;
(7) outer mold surface in the finish turning: profile in the first finish turning, the finish turning outer mold surface is to the product requirement size again.
Embodiment 3
A kind of manufacture method of large size, thin walled cap seal head made from TC 4 titanium alloy with high precision, it may further comprise the steps:
(1) a time is revolved by force: selecting thickness is the blank of 12mm, and being prepared into and being with center positioning hole, diameter is the plectane blank of Φ 750mm; With oxygen-acetylene welding torch core is preheated to 280 ℃, blank is installed on the core after the preheating, the relative end socket profile of frock profile leaves the allowance of 0.8mm, and whole blank is preheated to 400 ℃, concentrating then to give needs the spinning position to be heated to 820 ℃, is threaded to 38% place of maximum deformation quantity more by force;
(2) multi-process conventional spinning: the blank of step (1) gained under 800 ℃ of temperature, is carried out the general of 5 passages and revolves, the undeformed flange of strong biscuit throwing spare district is abutted on the core, shrink and form the end socket semi-finished product;
(3) a time is revolved by force again: with the end socket semi-finished product of step (2) gained under 820 ℃ of temperature from central division the position be threaded to the end socket oral area again by force, making deflection is 8%;
(4) vacuum annealing is handled: the end socket semi-finished product that spinning is crossed carry out 60min high-temperature vacuum annealing in process at 780 ℃, cool off with stove then;
(5) rough turn outer mold surface: the end socket semi-finished product after the annealing in process are carried out rough turn processing, leave allowance 1.2mm;
(6) stabilization processes: the end socket semi-finished product of step (5) gained are warming up to 400 ℃ in 90min, insulation 60min is warming up to 600 ℃ subsequently in 60min, and insulation 120min cools off with stove then;
(7) outer mold surface in the finish turning: profile in the first finish turning, the finish turning outer mold surface is to the product requirement size again.
The present invention is applicable to the manufacturing of large size, thin walled made from TC 4 titanium alloy with high precision.
Claims (1)
1. the manufacture method of a large size, thin walled cap seal head made from TC 4 titanium alloy with high precision, it is characterized in that: it may further comprise the steps:
(1) a time is revolved by force: core is preheated to 200 ℃～350 ℃, blank is installed on the core after the preheating, the relative end socket profile of frock profile leaves the allowance of 0.5～1mm, and whole blank is preheated to 300 ℃～500 ℃, concentrating then to give needs the spinning position to be heated to 750 ℃～900 ℃, is threaded to 30%～45% place of maximum deformation quantity more by force;
(2) multi-process conventional spinning: the blank of step (1) gained under 700 ℃～900 ℃ temperature, is carried out the general of 4～6 passages and revolves, the undeformed flange of strong biscuit throwing spare district is abutted on the core, shrink and form the end socket semi-finished product;
(3) a time is revolved by force again: with the end socket semi-finished product of step (2) gained under 750 ℃～900 ℃ temperature from central division the position be threaded to the end socket oral area again by force, making deflection is 5%～10%;
(4) vacuum annealing is handled: the end socket semi-finished product that spinning is crossed carry out 50～70min high-temperature vacuum annealing in process at 760 ℃～800 ℃, cool off with stove then;
(5) rough turn outer mold surface: the end socket semi-finished product after the annealing in process are carried out rough turn processing, leave allowance 1～1.5mm;
(6) stabilization processes: the end socket semi-finished product of step (5) gained are warming up to 380 ℃～420 ℃ in 70～110min, insulation 50～70min is warming up to 580 ℃～620 ℃ subsequently in 50～70min, and insulation 100～140min cools off with stove then;
(7) outer mold surface in the finish turning: profile in the first finish turning, the finish turning outer mold surface is to the product requirement size again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101432549A CN100542736C (en) | 2007-08-09 | 2007-08-09 | A kind of manufacture method of large size, thin walled cap seal head made from TC 4 titanium alloy with high precision |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101432549A CN100542736C (en) | 2007-08-09 | 2007-08-09 | A kind of manufacture method of large size, thin walled cap seal head made from TC 4 titanium alloy with high precision |
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| Publication Number | Publication Date |
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| CN101092015A true CN101092015A (en) | 2007-12-26 |
| CN100542736C CN100542736C (en) | 2009-09-23 |
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| CN101367103B (en) * | 2008-07-31 | 2010-06-23 | 镁联科技（芜湖）有限公司 | Magnesium alloy sheet material flow forming and molding process |
| CN101955185A (en) * | 2010-05-14 | 2011-01-26 | 常州威诺德机械制造有限公司 | Processing technology of seal head for polycrystalline silicon reduction furnace |
| CN101716716B (en) * | 2009-12-15 | 2011-04-20 | 中国船舶重工集团公司第七二五研究所 | Method for expanding titanium T-shaped pipe |
| CN102069121A (en) * | 2010-11-11 | 2011-05-25 | 西安航天动力机械厂 | Spinning method of variable diameter pipe dieless floating rolling ball and fixture |
| CN102319989A (en) * | 2011-09-06 | 2012-01-18 | 上海交通大学 | Manufacturing method of airplane horizontal tail beam edge strip |
| CN102699246A (en) * | 2012-06-06 | 2012-10-03 | 张家港海陆重型锻压有限公司 | Seal head forging process |
| CN102019338B (en) * | 2009-09-22 | 2012-10-03 | 上海重型机器厂有限公司 | Punching method for forming integrated top cover |
| CN102756241A (en) * | 2012-06-26 | 2012-10-31 | 江苏天成封头有限公司 | Method for machining carbon steel heads |
| CN103071736A (en) * | 2012-12-28 | 2013-05-01 | 西安优耐特容器制造有限公司 | Composite molding process of large-size titanium-made end socket |
| CN103203592A (en) * | 2012-12-20 | 2013-07-17 | 贵州黎阳航空动力有限公司 | Process method for improving rigidity of large titanium alloy ring groove thin-wall part |
| CN103381441A (en) * | 2013-07-03 | 2013-11-06 | 中国船舶重工集团公司第七二五研究所 | Hot stamping formation processing method for thin-walled titanium alloy sealing head |
| CN103406761A (en) * | 2013-07-19 | 2013-11-27 | 首都航天机械公司 | TC4 titanium alloy pipe ball head heat flow forming method |
| CN104175071A (en) * | 2014-07-24 | 2014-12-03 | 首都航天机械公司 | Hot forming method and die of complex titanium alloy cable cover seal head |
| CN104212958A (en) * | 2013-06-02 | 2014-12-17 | 谭旭 | Technology process of lateral gear steam-sealing vacuum heat treatment |
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| CN104786006A (en) * | 2014-01-21 | 2015-07-22 | 无锡市前洲西塘锻压有限公司 | Manufacturing method for titanium plate plugs |
| CN104786014A (en) * | 2014-01-21 | 2015-07-22 | 无锡市前洲西塘锻压有限公司 | Manufacturing method for titanium composite plate plugs |
| CN105537385A (en) * | 2015-12-08 | 2016-05-04 | 哈尔滨汽轮机厂有限责任公司 | Integral forming method for water chamber sealing head on turbine condenser water chamber |
| CN107695167A (en) * | 2017-11-06 | 2018-02-16 | 哈尔滨工业大学 | A kind of intersection spinning of titanium alloy thin-wall cylindrical part strengthens forming method |
| CN108555543A (en) * | 2018-05-11 | 2018-09-21 | 航天材料及工艺研究所 | A kind of manufacturing process of Aluminum alloys tank Loadings On Hemispherical Shell |
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| CN110814245A (en) * | 2019-11-06 | 2020-02-21 | 江阴市恒润环锻有限公司 | Forging method of aluminum alloy forging |
| CN110814143A (en) * | 2019-11-28 | 2020-02-21 | 沈阳航天新光集团有限公司 | TC4 titanium alloy super-hemisphere spinning forming method |
| CN112742949A (en) * | 2020-11-27 | 2021-05-04 | 北京星航机电装备有限公司 | Thermal forming device and forming method for aluminum alloy thin-wall large-size end socket structural part |
| CN113059325A (en) * | 2021-03-31 | 2021-07-02 | 贵州航天天马机电科技有限公司 | Precision forming method for large-size variable-curvature thin-wall storage tank diaphragm |
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- 2007-08-09 CN CNB2007101432549A patent/CN100542736C/en active Active
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| CN101367103B (en) * | 2008-07-31 | 2010-06-23 | 镁联科技（芜湖）有限公司 | Magnesium alloy sheet material flow forming and molding process |
| CN102019338B (en) * | 2009-09-22 | 2012-10-03 | 上海重型机器厂有限公司 | Punching method for forming integrated top cover |
| CN101716716B (en) * | 2009-12-15 | 2011-04-20 | 中国船舶重工集团公司第七二五研究所 | Method for expanding titanium T-shaped pipe |
| CN101955185B (en) * | 2010-05-14 | 2012-07-18 | 常州威诺德机械制造有限公司 | Processing technology of seal head for polycrystalline silicon reduction furnace |
| CN101955185A (en) * | 2010-05-14 | 2011-01-26 | 常州威诺德机械制造有限公司 | Processing technology of seal head for polycrystalline silicon reduction furnace |
| CN102069121B (en) * | 2010-11-11 | 2013-01-16 | 西安航天动力机械厂 | Spinning method of variable diameter pipe dieless floating rolling ball and fixture |
| CN102069121A (en) * | 2010-11-11 | 2011-05-25 | 西安航天动力机械厂 | Spinning method of variable diameter pipe dieless floating rolling ball and fixture |
| CN102319989A (en) * | 2011-09-06 | 2012-01-18 | 上海交通大学 | Manufacturing method of airplane horizontal tail beam edge strip |
| CN102319989B (en) * | 2011-09-06 | 2013-11-20 | 上海交通大学 | Manufacturing method of airplane horizontal tail beam edge strip |
| CN102699246A (en) * | 2012-06-06 | 2012-10-03 | 张家港海陆重型锻压有限公司 | Seal head forging process |
| CN102756241A (en) * | 2012-06-26 | 2012-10-31 | 江苏天成封头有限公司 | Method for machining carbon steel heads |
| CN103203592A (en) * | 2012-12-20 | 2013-07-17 | 贵州黎阳航空动力有限公司 | Process method for improving rigidity of large titanium alloy ring groove thin-wall part |
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| CN103071736B (en) * | 2012-12-28 | 2015-08-12 | 西安优耐特容器制造有限公司 | A kind of Large Titanium end socket composite molding technique |
| CN104212958A (en) * | 2013-06-02 | 2014-12-17 | 谭旭 | Technology process of lateral gear steam-sealing vacuum heat treatment |
| CN103381441B (en) * | 2013-07-03 | 2015-04-29 | 中国船舶重工集团公司第七二五研究所 | Hot stamping formation processing method for thin-walled titanium alloy sealing head |
| CN103381441A (en) * | 2013-07-03 | 2013-11-06 | 中国船舶重工集团公司第七二五研究所 | Hot stamping formation processing method for thin-walled titanium alloy sealing head |
| CN103406761A (en) * | 2013-07-19 | 2013-11-27 | 首都航天机械公司 | TC4 titanium alloy pipe ball head heat flow forming method |
| CN104786006A (en) * | 2014-01-21 | 2015-07-22 | 无锡市前洲西塘锻压有限公司 | Manufacturing method for titanium plate plugs |
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| CN104175071A (en) * | 2014-07-24 | 2014-12-03 | 首都航天机械公司 | Hot forming method and die of complex titanium alloy cable cover seal head |
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| CN105537385A (en) * | 2015-12-08 | 2016-05-04 | 哈尔滨汽轮机厂有限责任公司 | Integral forming method for water chamber sealing head on turbine condenser water chamber |
| CN107695167A (en) * | 2017-11-06 | 2018-02-16 | 哈尔滨工业大学 | A kind of intersection spinning of titanium alloy thin-wall cylindrical part strengthens forming method |
| CN108637602A (en) * | 2018-05-11 | 2018-10-12 | 航天材料及工艺研究所 | A kind of large size, thin walled Aluminum alloys tank Loadings On Hemispherical Shell manufacturing process |
| CN108555543A (en) * | 2018-05-11 | 2018-09-21 | 航天材料及工艺研究所 | A kind of manufacturing process of Aluminum alloys tank Loadings On Hemispherical Shell |
| CN110814245A (en) * | 2019-11-06 | 2020-02-21 | 江阴市恒润环锻有限公司 | Forging method of aluminum alloy forging |
| CN110814245B (en) * | 2019-11-06 | 2021-05-14 | 江阴市恒润环锻有限公司 | Forging method of aluminum alloy forging |
| CN110814143A (en) * | 2019-11-28 | 2020-02-21 | 沈阳航天新光集团有限公司 | TC4 titanium alloy super-hemisphere spinning forming method |
| CN110814143B (en) * | 2019-11-28 | 2021-07-20 | 沈阳航天新光集团有限公司 | TC4 titanium alloy super-hemisphere spinning forming method |
| CN112742949A (en) * | 2020-11-27 | 2021-05-04 | 北京星航机电装备有限公司 | Thermal forming device and forming method for aluminum alloy thin-wall large-size end socket structural part |
| CN112742949B (en) * | 2020-11-27 | 2023-01-17 | 北京星航机电装备有限公司 | Thermal forming device and forming method for aluminum alloy thin-wall large-size end socket structural part |
| CN113059325A (en) * | 2021-03-31 | 2021-07-02 | 贵州航天天马机电科技有限公司 | Precision forming method for large-size variable-curvature thin-wall storage tank diaphragm |
| CN113059325B (en) * | 2021-03-31 | 2023-01-20 | 贵州航天天马机电科技有限公司 | Precision forming method for large-size variable-curvature thin-wall storage tank diaphragm |
| CN114453846A (en) * | 2022-03-24 | 2022-05-10 | 西安稀有金属材料研究院有限公司 | Preparation method of multi-size pure titanium cathode roller |
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